Lighting device



FIG. 1 is a perspective view of a lighting device showing new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken-line disclosure in the views is understood to form no part ofthe claimed design.

I claim the ornamental design for a lighting device, as shown anddescribed.